A circuit design system generates a circuit variant by relocating one or more circuit elements through a user move action on a user interface. When the user move action results in the circuit element traversing a circuit domain boundary, the design system performs one or more operations to form the circuit variant having its initial connectivity with the relocated circuit element without any other user action on the user interface than the user move action. Further, in response to no other action on the user interface than the user move action, analysis tools and reports are initiated so that rapid evaluation of circuit variants may be implemented.